<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    
    <!-- <link rel="stylesheet" type="text/css" href="index.css" /> -->

    <style>
        @import url(index.css);
    </style>
</head>
<body>
    <h1>111</h1>
    <h2>222</h2>
</body>
</html>